55528169 has 2 divisors, whose sum is σ = 55528170. Its totient is φ = 55528168.

The previous prime is 55528163. The next prime is 55528181. The reversal of 55528169 is 96182555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54567769 + 960400 = 7387^2 + 980^2 .

It is a cyclic number.

It is not a de Polignac number, because 55528169 - 2¹⁶ = 55462633 is a prime.

It is a super-2 number, since 2×55528169² = 6166755104985122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55528163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27764084 + 27764085.

It is an arithmetic number, because the mean of its divisors is an integer number (27764085).

Almost surely, 2^55528169 is an apocalyptic number.

It is an amenable number.

55528169 is a deficient number, since it is larger than the sum of its proper divisors (1).

55528169 is an equidigital number, since it uses as much as digits as its factorization.

55528169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 41.

The square root of 55528169 is about 7451.7225525378. The cubic root of 55528169 is about 381.5087043185.

The spelling of 55528169 in words is "fifty-five million, five hundred twenty-eight thousand, one hundred sixty-nine".